Table of Contents
Where does the feeling of pain come from?
When we feel pain, such as when we touch a hot stove, sensory receptors in our skin send a message via nerve fibres (A-delta fibres and C fibres) to the spinal cord and brainstem and then onto the brain where the sensation of pain is registered, the information is processed and the pain is perceived.
What is pain a result of?
Most pain is nociceptive pain. It results from stimulation of pain receptors for tissue injury (nociceptors)… read more results from stimulation of pain receptors. It is caused by an injury to body tissues. Most pain, particularly acute pain, is nociceptive pain.
Where are pain receptors located?
Pain receptors, also called nociceptors, are a group of sensory neurons with specialized nerve endings widely distributed in the skin, deep tissues (including the muscles and joints), and most of visceral organs.
Does pain originate in the brain?
The brain itself does not feel pain because there are no nociceptors located in brain tissue itself. This feature explains why neurosurgeons can operate on brain tissue without causing a patient discomfort, and, in some cases, can even perform surgery while the patient is awake.
What is pain behind the knee?
Some of the most common causes of pain behind the knee (posterior knee pain) include, Baker’s cyst, arthritis, infection, injury, tumor, or deep vein thrombosis. Since the knee is the largest and most complex joint in the body, it makes sense that it might hurt sometimes.
What part of the brain controls pain?
Parietal lobe. The middle part of the brain, the parietal lobe helps a person identify objects and understand spatial relationships (where one’s body is compared with objects around the person). The parietal lobe is also involved in interpreting pain and touch in the body.
What part of the brain detects pain?
Most notably, the insula and anterior cingulate cortex are consistently activated when nociceptors are stimulated by noxious stimuli, and activation in these brain regions is associated with the subjective experience of pain.
Why do knees hurt in bed?
Arthritis. The most common form of arthritis, osteoarthritis, is also the most common cause of knee pain at night. Osteoarthritis is a wear-and-tear condition that affects the joints of the body. As we age, cartilage begins to thin and bursa provides less cushion in the joint.
Where does pain information go in the nervous system?
When noxious stimuli impinge upon the body from external or internal sources, information regarding the damaging impact of these stimuli on bodily tissues is transduced through neural pathways and transmitted through the peripheral nervous system to the central and autonomic nervous systems.
Pain is influenced by emotions, and the cycle of pain and emotions are interrelated. Emotions may directly impact physical change as well. For example, when you are anxious or angry, your muscles may tighten, and that physical change may also contribute to increased pain.
How does society affect a person’s pain experience?
Parents, for example, may respond to a child’s pain in a certain manner, setting a foundational pain response for an individual that may influence future pain experiences. Also, societal and medical care systems can impact the pain experience.
What kind of pain is associated with inflammation?
inflammatory pain which is associated with tissue damage and the infiltration of immune cells, and. pathological pain which is a disease state caused by damage to the nervous system or by its abnormal function (e.g. fibromyalgia, peripheral neuropathy, tension type headache, etc.).